After the seventh Demon Lord, Sadamo, takes the throne, he uses the power of the Heart of Mara to rebuild the Demon Empire, which has been at war with humanity and the Holy Domain. The empire plots to destroy humanity and conquer the Holy Domain, conspiring in secret and paying a terrible price for its plans. This scheme is called “Nothing.” Carter Kyle, captain of the guard in Karosa, the foremost city of the Demon Domain and a city under human rule, captures a demon spy. Interrogation reveals the plan, though its details remain unclear... Meanwhile, the ill omen known as the “Sign of the Blood Moon” appears over human lands. Disaster is coming. What path will they choose...?
